I. Dulmar
Iyada oo horumarka degdega ah ee wax soo saarka warshadaha mishiinada, qaababka alxanka sida injineernimada casriga ah iyo weelasha cadaadiska ayaa u koraya dhinaca isbeddellada waaweyn iyo kuwa fudud. Shuruudaha loogu talagalay darajooyinka xoogga birta ayaa sii kordhaya oo sarreeya, ma aha oo kaliya waxay u baahan yihiin sifooyin farsamo oo dhammaystiran oo wanaagsan, laakiin sidoo kale hab-socodka wanaagsan, alxanka iyo iska caabinta dildilaaca.
Birta Q690 waxa iska leh birta qaab dhismeedka alxanka sare leh, halkaas oo Q u taagan tahay wax-soo-saarka, iyo 690 waxay ka dhigan tahay heerka awoodda wax-soo-saarku waa 690MPa. Birta darajada 690MPa waxay leedahay waxsoosaar sare iyo xoog adkaysi leh, waxaana si weyn loogu isticmaalaa mashiinnada dhuxusha dhuxusha, mashiinnada dhismaha, injineernimada badda, meelaha xeebaha, weelasha cadaadiska, iwm. qaabaynta iyo weldability fiican.
2.Brief hordhaca ah ee saxan birta Q690
Caalami Q690 darajada birta | Q690A | Q690B | Q690C | Q690D | Q690E | Q690F |
Baal | Kulul duuban | Dejin + xanaaq (xaalad la demiyay iyo xanaaq) | ||||
Waxyaalo wasakhaysan | Sare P/S | hoose P/S | P/S ugu yar | |||
Shuruudaha naxdinta leh | NO | Naxdinta heerkulka caadiga ah | 0℃ | -20℃ | -40℃ | -60℃ |
Si kastaba ha noqotee, wakhtigan, saxanka birta ee 690MPa ee maraakiibta cadaadiska gudaha waxay inta badan ku saleysan tahay heerka Yurub EN10028-6, guryaha ku habboon ayaa si kooban loogu taxay shaxdan soo socota:
Soo saari birta 690MPA ee qalabka cadaadiska caadiga ah ee Yurub | P690Q | P690QH | P69QL1 | P69QL2 |
Baal | hadhuudh fiican oo la demiyo iyo bir dabcay | |||
shuruudaha xoogga | Wax-soosaarka≥690MPa( dhumucdiisuna waxay tahay 50mm) Tensile770-940MPa | |||
Waxyaalo wasakhaysan | P≤0.025%, S≤0.015% | P≤0.02%, S≤0.010% | ||
Shuruudaha naxdinta leh | 20℃≥60J | 20℃≥60J | 0℃≥60J | -20℃≥40J |
0℃≥40J | 0℃≥40J | -20℃≥40J | -40℃≥27J | |
-20℃≥27J | -20℃≥27J | -40℃≥27J | -60℃≥27J | |
Meelaha codsiga ugu muhiimsan | Qaab-dhismeedka cadaadiska ama weelasha cadaadiska leh shuruudaha adag ee saameyn hooseeya | Taangiga wareegsan oo leh shuruudo farsamo oo sarreeya | Haanta dareeraha badda ee gaaska dareeraha ah |
Sida saxan bir ah oo loogu talagalay taangiyada kaydinta iyo awoodda cadaadiska, waa inay lahaataa xoog iyo adayg wanaagsan, waxqabadka qaloocinta qabow iyo dareenka dillaaca hooseeya. Inkasta oo birta Q690 ee la demiyo oo la dabcay ay leedahay kaarboon hoose oo u dhiganta iyo sifooyin dhammaystiran oo heer sare ah, haddana waxay leedahay dabacsanaan gaar ah marka la barbar dhigo qalabka kale ee cadaadiska 50/60kg, iyo daaweynta kuleylka ka dib ayaa loo baahan yahay. Si kastaba ha ahaatee, tiro badan oo daraasado tijaabo ah ayaa muujiyay in Q690 qalabka alxanka birta ah, saameynta heerkulka hoose ee adag ayaa si weyn u xumaan doonta ka dib daaweynta kuleylka kuleylka, iyo kororka heerkulka daaweynta kulaylka iyo hoos u dhaca heerkulka saameynta, sii xumaanshaha. alxanka adkaanta la isticmaalo ayaa noqon doonta mid cad. Sidaa darteed, waa muhiimad wax ku ool ah oo aad u weyn si loo horumariyo xoogga sare, adkaanta saamaynta sare leh, iyo kulaylka lagu daweyn karo alxanka Q690 birta si guul leh loogu isticmaalo Q690 birta qalabka cadaadiska, la yareeyo qalabka birta, iyo dhimista kharashka wax soo saarka.
3.Brief hordhaca ah ee our usha alxanka birta Q690
Shayga | Heerka | Nooca maqaarka | Polarity | sifooyinka ugu muhiimsan |
GEL-118M | AWS A5.5 E1108MISO 18275-BE7618-N4M2A | Budada birta nooca hydrogen hooseeyo | DC+/AC | Awood sare, hydrogen hooseeya, hufnaanta meelaynta sare, guryaha farsamaysan ee deggan, heerkulka hoose ee saamaynta adag ee -50 ° C, iyo saamaynta wanaagsan ee -40 ° C daaweynta kulaylka ka dib |
GEL-758 | AWS A5.5 E11018-GISO 18275-BE7618-G A | Budada birta nooca hydrogen hooseeyo | DC+/AC | Haydrojiin aadka u hooseeya, waxtarka meelaynta sare, adkaanta sare (-60℃≥70J), adkaanta saamaynta wanaagsan ee -40/-50 ℃ daawaynta kulaylka ka dib |
GEL-756 | AWS A5.5 E11016-GISO 18275-BE7616-G A | Nooca potassium hydrogen hooseeya | AC/DC+ | Haydarojiin aadka u hooseeya, AC/DC+ dual-ujeedo, adag oo saameyn sare leh (-60℃≥70J), adkaanta saameyn wanaagsan at -50/-60 ℃ daaweynta kulaylka ka dib |
4.Q690 ul alxanka birta bandhigay waxqabadka farsamada
Shayga | Guryaha farsamada sida-welded | ||||||
Wax soo saar MPA | MPA kacsan | Kordhi % | Saamaynta hantida J/℃ | Baaritaanka shucaaca | Haydaroojin kala duwan ml/100g | ||
-50 ℃ | -60℃ | ||||||
AWS A5.5 E11018M | 680- 760 | ≥760 | ≥20 | ≥27 | - | I | - |
ISO 18275-B E7618-N4M2A | 680- 760 | ≥760 | ≥18 | ≥27 | - | I | - |
GEL-118M | 750 | 830 | 21.5 | 67 | 53 | I | 3.2 |
AWS A5.5 E1101X-G | ≥670 | ≥760 | ≥15 | - | - | I | - |
ISO 18275B E761X-GA | ≥670 | ≥760 | ≥13 | - | - | I | - |
GEL-758 | 751 | 817 | 19.0 | 90 | 77 | I | 3.4 |
GEL-756 | 764 | 822 | 19.0 | 95 | 85 | I | 3.6 |
Tusaale:
1. "X" ku calaamadsan farta cas ee heerka American Standard iyo European Standard waxay u taagan tahay nooca maqaarka daroogada.
2. GEL-758 waxay u dhigantaa E11018-G iyo ISO 18275-B E7618-G A ee AWS iyo heerarka ISO siday u kala horreeyaan.
3. GEL-756 waxay u dhigantaa E11016-G iyo ISO 18275-B E7616-G A ee AWS iyo heerarka ISO siday u kala horreeyaan.
Qalabka makaanikada ee usha alxanka birta ee Q690 ee gobolka daaweynta kulaylka
Shayga | Qalabka makaanikada ee kuleyl la daaweeyay | ||||||
Wax soo saar MPA | MPA kacsan | Kordhi % | Saamaynta hantida J/℃ | Kululaynta ℃*h | |||
-40℃ | -50 ℃ | -60℃ | |||||
Hadafka mashruuca | ≥670 | ≥760 | ≥15 | ≥60 | ≥52 | ≥47 | 570*2 |
GEL-118M | 751 | 827 | 22.0 | 85 | 57 | - | 570*2 |
GEL-758 | 741 | 839 | 20.0 | 82 | 66 | 43 | 570*2 |
GEL-756 | 743 | 811 | 21.5 | 91 | 84 | 75 | 570*2 |
Tusaale:
1. AWS iyo heerarka ISO ee la xidhiidha ma laha shuruudaha waxqabadka daaweynta kulaylka ee alaabta kor ku xusan. Daawaynta kulaylka kor ku xusan ayaa lagu soo koobay iyadoo lagu saleynayo xaaladaha farsamada ee macaamiisha intooda badan waana tixraac kaliya.
2. GEL-118M waxa ay leedahay saamayn aad u wanaagsan adkeyd at -40°C daawaynta kulaylka ka dib, iyo saamaynta sii xumaanaya ee -50°C waa mid aad u cad.
3. Daaweynta kulaylka ka dib, GEL-758 waxay leedahay saameyn aad u fiican -40 ° C, adkaanta -50 ° C, iyo hoos u dhac ku yimaada heerkulka -60 ° C.
4. Saamaynta heerkulka hoose ee adkaanta GEL-756 ka dib daaweynta kulaylku waa mid yar, iyo heerkulka hoose ee -60 ° C weli waa wanaagsan yahay.
Muujinta alxanka ee Q690 birta alxanka
1. Alxanka Fillet fidsan (φ4.0mm)
GEL-118M alxanka fillet ka hor iyo ka dib saarista slag (DC+)
Kahor iyo ka dib GEL-758 ka saarida alxanka fillet ee fidsan (DC+)
GEL-756 alxanka fillet ka hor iyo ka dib saarista slag (AC)
GEL-756 alxanka fillet ka hor iyo ka dib saarista slag (DC+))
Q690 taxadar alxanka usha birta
1. Kaydinta alaabta alxanka:
Alaabta alxanka ah waxaa lagula talinayaa in lagu keydiyo heerkul joogto ah iyo xaalado qalalan, oo lagu dhejiyo gogosha ama khaanadaha, iyada oo laga fogaanayo xiriir toos ah oo gidaarada iyo dhulka ah.
2. Diyaarinta alxanka ka hor:
Si fiican uga saar qoyaanka, miridhku, wasakhda saliidda, iwm ee dusha sare ee maaddada salka, kana ilaali qoyaanka dusha sare ama soo-gaadhista roobka iyo barafka.
3. Tallaabooyinka dabaysha celiya:
Marka alxanka, waa in la hubiyaa in xawaaraha dabaysha ugu badan ee meesha alxanka ah in aanu ka badnayn 2m/s. Haddii kale, waa in la qaado tallaabooyin ilaalin ah.
4. Kuleylinta ka hor:
Waxaa lagu talinayaa in la isticmaalo qalabka kuleyliyaha koronto si loo kululeeyo shaqada ilaa 150 ° C ka hor alxanka. Xataa ka hor alxanka alxanka, waa in horay loo sii kululeeyaa ilaa 150 ° C.
5. Lakabka iyo xakamaynta heerkulka wadada:
Inta lagu jiro habka alxanka oo dhan, heerkulka isdhaafsiga waa inuusan ka hooseynin kulaylka hore, heerkulka lagu taliyayna waa 150-220 ° C.
6. Soo saarista hydrogen ka dib alxanka:
Ka dib marka la toleeyo alxanka, isla markiiba kor u qaad heerkulka kuleyliyaha korantada ilaa 250 ℃ ~ 300 ℃, diiri ilaa 2 ilaa 4 saacadood, ka dibna si tartiib ah u qabooji.
① Haddii dhumucda workpiece waa ≥50mm, waqtiga haynta waa in la kordhiyo ilaa 4-6 saacadood, ka dibna si tartiib ah u qaboojiyey.
② Marka la eego shuruudaha dhumucda weyn iyo xakamaynta weyn, hal fuuqbax oo kale ayaa lagu dari karaa ka dib alxanka ilaa 1/2 dhumucdiisuna, oo si tartiib ah loo qaboojiyo heerkulka interpass.
7. Qaabka sagxada:
Waxaa lagu talinayaa in la isticmaalo alxanka lakabka badan iyo baasaska badan, iyo xawaaraha alxanka waa in lagu hayaa xawaare joogto ah.
More information send to E-mail: export@welding-honest.com
Waqtiga boostada: Jan-10-2023